Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NATIONAL CHEMICAL LABORATORIES INC
401 N 10TH ST, PHILADELPHIA, PA, 19123
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Certain glycol ethers | 1,1,1-Trichloroethane | Chlorophenols | Mixture | Trichloroethylene | Total (lbs) |
| 2024 | 560 | — | — | — | — | 560 |
| 2023 | 569 | — | — | — | — | 569 |
| 2022 | 580 | — | — | — | — | 580 |
| 2021 | 565 | — | — | — | — | 565 |
| 2020 | 849 | — | — | — | — | 849 |
| 2019 | 768 | — | — | — | — | 768 |
| 2018 | 806 | — | — | — | — | 806 |
| 2017 | 677 | — | — | — | — | 677 |
| 2016 | 931 | — | — | — | — | 931 |
| 2015 | 891 | — | — | — | — | 891 |
| 2014 | 827 | — | — | — | — | 827 |
| 2013 | 731 | — | — | — | — | 731 |
| 2012 | 1,000 | — | — | — | — | 1,000 |
| 2011 | — | — | — | — | 5 | 5 |
| 2010 | — | — | — | — | 5 | 5 |
| 2009 | — | — | — | — | 250 | 250 |
| 2008 | — | — | — | — | 250 | 250 |
| 2007 | — | — | — | — | 250 | 250 |
| 2006 | — | — | — | — | 250 | 250 |
| 2005 | — | — | — | 1,172 | — | 1,172 |
| 2004 | — | — | — | 1,070 | — | 1,070 |
| 2003 | — | — | — | 993 | — | 993 |
| 2002 | — | — | — | 1,126 | — | 1,626 |
| 2001 | — | — | — | 737 | — | 992 |
| 2000 | 677 | — | — | — | — | 677 |
| 1999 | 649 | — | — | — | — | 654 |
| 1998 | 579 | — | — | — | — | 584 |
| 1997 | 823 | — | — | — | — | 839 |
| 1996 | 794 | — | — | — | — | 815 |
| 1995 | 841 | — | — | — | — | 862 |
| 1994 | 559 | — | — | — | — | 579 |
| 1993 | 929 | 145 | 10 | — | — | 1,106 |
| 1992 | 1,550 | 905 | 1,033 | — | — | 3,498 |
| 1991 | 1,750 | 1,000 | 1,317 | — | — | 4,067 |
| 1990 | 2,468 | 2,531 | 1,322 | — | — | 6,321 |
| 1989 | 2,468 | 2,531 | 1,322 | — | — | 6,321 |
| 1988 | 2,468 | 2,531 | — | — | — | 5,075 |
| 1987 | — | — | 145 | — | — | 250 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.